Journal article Open Access

Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in C e C o I n 5

Bianchi, A.; Movshovich, R.; Capan, C.; Pagliuso, P. G.; Sarrao, J. L.


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{
  "DOI": "10.1103/physrevlett.91.187004", 
  "author": [
    {
      "family": "Bianchi, A."
    }, 
    {
      "family": "Movshovich, R."
    }, 
    {
      "family": "Capan, C."
    }, 
    {
      "family": "Pagliuso, P. G."
    }, 
    {
      "family": "Sarrao, J. L."
    }
  ], 
  "issued": {
    "date-parts": [
      [
        2003, 
        10, 
        1
      ]
    ]
  }, 
  "abstract": "We report specific heat measurements of the heavy fermion superconductor CeCoIn5 in the vicinity of the superconducting critical field H(c2), with magnetic fields in the [110], [100], and [001] directions, and at temperatures down to 50 mK. The superconducting phase transition changes from second to first order for fields above 10 T for H parallel [110] and H parallel [100]. In the same range of magnetic fields, we observe a second specific heat anomaly within the superconducting state. We interpret this anomaly as a signature of a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) inhomogeneous superconducting state. We obtain similar results for H parallel [001], with the FFLO state occupying a smaller part of the phase diagram.", 
  "title": "Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in C e C o I n 5", 
  "type": "article-journal", 
  "id": "1233945"
}
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